github.com/chigopher/pathlib in-memory example

in_memory.go

package main

import (
	"fmt"
	"os"

	"github.com/chigopher/pathlib"
	"github.com/spf13/afero"
)

func main() {
	// Create a path using an in-memory filesystem
	path := pathlib.NewPathAfero("/", afero.NewMemMapFs())
	hello := path.Join("hello_world.txt")
	hello.WriteFile([]byte("hello world!"), 0o644)

	subpaths, err := path.ReadDir()
	if err != nil {
		fmt.Printf("%v\n", err)
		os.Exit(1)
	}

	for _, subpath := range subpaths {
		fmt.Printf("Name: %s Mode: %o Size: %d\n", subpath.Name(), subpath.Mode(), subpath.Size())
	}

	bytes, _ := hello.ReadFile()
	fmt.Println(string(bytes))
}